Kram
Member
- Messages
- 6,223
- Location
- Sussex
Citric acid. Its not so good at oil, but a quick wipe will remove enough. Citric will eat through the black carbon scale leaving bright shiny metal. I have 8 meter lengths stuck in a bucket full right now. Bucket is not deep enough I need to get some 2.5" waste pipe and end caps to put them in.